diff --git a/library/modules/Textures.cpp b/library/modules/Textures.cpp
index d29cf02fb..9976a3c4f 100644
--- a/library/modules/Textures.cpp
+++ b/library/modules/Textures.cpp
@@ -178,7 +178,7 @@ void Textures::cleanup() {
 
     auto & textures = enabler->textures;
     auto &raws = textures.raws;
-    size_t texpos_end = g_dfhack_logo_texpos_start + g_num_dfhack_textures;
+    size_t texpos_end = g_dfhack_logo_texpos_start + g_num_dfhack_textures - 1;
     for (size_t idx = g_dfhack_logo_texpos_start; idx <= texpos_end; ++idx) {
         DFSDL_FreeSurface((SDL_Surface *)raws[idx]);
         raws[idx] = NULL;